Tantalum target

Brand: TA1

Purity: 99.95%

Standard: national standard or American Standard

Characteristics: high purity, corrosion resistance, high temperature resistance, good conductivity, complete specifications, hot processing, cold processing, good plasticity

Tantalum is a chemical element, the chemical symbol is Ta, the atomic number is 73.

Character:

Tantalum is a blue gray transition metal with high melting point (melting point 2996 ℃). Tantalum is ductile, hard and corrosion-resistant. Tantalum will not react with aqua regia. It is used for manufacturing chemical equipment, vacuum tubes, medical devices and implants.

Physical properties

State of matter: solid

Melting point: 3290k (3017 ° C)

Boiling point: 5731k (5458 ° C)

Molar volume: 10.85 × 10-6m3 / mol

Heat of vaporization: 743kj / mol

Melting heat: 31.6kj/mol

Vapor pressure: 0.776 PA (3269k)

Sound speed: 3400m / S (293.15K)

Atomic properties

Atomic weight: 180.94788 (2) atomic weight unit

Atomic radius (calculated value): 145 (200) PM

Covalent radius: 138pm

Van der Waals radius: no data

Valence electron arrangement: [xenon] 4f145d36s2

The arrangement of electrons in each energy level: 2, 8, 18, 32, 11, 2

Oxidation value (oxide): 5 (weak acid)

Crystal structure: body centered cubic lattice